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Finding the Fourth Proportional to 342,414.66, 472,529.67 and 191,511.66

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Solution

The fourth proportional to 342,414.66, 472,529.67 and 191,511.66 is: 264,284.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,414.66 : 472,529.67 = 191,511.66 : x
  2. Step 2: Convert to fraction form
    342,414.66/472,529.67 = 191,511.66/x
  3. Step 3: Cross multiply
    342,414.66x = 472,529.67 × 191,511.66
  4. Step 4: Simplify right side
    342,414.66x = 90,494,941,500.95
  5. Step 5: Solve for x
    x = 90,494,941,500.95/342,414.66
  6. Step 6: Final answer
    x = 264,284.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.